| Mal'tsev and retral spaces PM Gartside, EA Reznichenko, OV Sipacheva Topology and its Applications 80 (1-2), 115-129, 1997 | 40 | 1997 |
| The topology of free topological groups OV Sipacheva Journal of Mathematical Sciences 131, 5765-5838, 2005 | 30 | 2005 |
| Free topological groups with no small subgroups, and Graev metrics OV Sipacheva, VV Uspenskii Vestnik Moskovskogo Universiteta. Seriya 1. Matematika. Mekhanika, 21-24, 1987 | 23 | 1987 |
| The Doitchinov completion of a regular paratopological group HP Künzi, S Romaguera, O Sipacheva Serdica Mathematical Journal 24 (1), 73p-88p, 1998 | 19 | 1998 |
| Free Boolean topological groups O Sipacheva Axioms 4 (4), 492-517, 2015 | 16 | 2015 |
| Topologizations of a set endowed with an action of a monoid T Banakh, I Protasov, O Sipacheva Topology and its Applications 169, 161-174, 2014 | 15 | 2014 |
| Compacta with a continuous Mal'tsev operation and retracts of topological groups OV Sipacheva Vestnik Moskovskogo Universiteta. Seriya 1. Matematika. Mekhanika, 33-36, 1991 | 14 | 1991 |
| Zerodimensionality and completeness in free topological groups I, II OV Sipacheva Serdica 15, 119-140, 1989 | 13 | 1989 |
| Discrete subsets in topological groups and countable extremally disconnected groups E Reznichenko, O Sipacheva Proceedings of the American Mathematical Society 149 (6), 2655-2668, 2021 | 12 | 2021 |
| A class of free locally convex spaces OV Sipacheva Sbornik: Mathematics 194 (3), 333, 2003 | 12 | 2003 |
| Frechet--Urysohn type properties in topological spaces, groups, and locally convex vector spaces EA Reznichenko, OV Sipacheva Moscow University Mathematics Bulletin 54 (3), 33-38, 1999 | 12 | 1999 |
| Stratifiability of free Abelian topological groups OV Sipacheva Topology Proc 18, 271-311, 1993 | 12 | 1993 |
| Structure of multiple function spaces in the topology of pointwise convergence for eberlein compacta OV Sipacheva Mathematical notes of the Academy of Sciences of the USSR 47, 287-292, 1990 | 12 | 1990 |
| Consistent solution of Markov's problem about algebraic sets OV Sipacheva arXiv preprint math/0605558, 2006 | 10 | 2006 |
| The free topological group on the Sorgenfrey line is not R-factorizable E Reznichenko, O Sipacheva Topology and its Applications 160 (11), 1184-1187, 2013 | 9 | 2013 |
| Properties of Fréchet–Uryson type in topological spaces, groups and locally convex spaces EA Reznichenko, OV Sipacheva Vestnik Moskovskogo Universiteta. Seriya 1. Matematika. Mekhanika, 32-38, 1999 | 9 | 1999 |
| A class of groups in which all unconditionally closed sets are algebraic OV Sipacheva arXiv preprint math/0610430, 2006 | 8 | 2006 |
| On Free Topological Groups with the Inductive Limit Topologies a OV Sipacheva Annals of the New York Academy of Sciences 788 (1), 188-196, 1996 | 8 | 1996 |
| Lindelof subspaces of function spaces over linearly ordered separable compacta OV Sipacheva General topology: Spaces and mappings, 193-198, 1989 | 8 | 1989 |
| Nonexistence of countable extremally disconnected groups with many open subgroups OV Sipacheva Topology and its Applications 179, 193-199, 2015 | 5 | 2015 |
